Railway-track sander



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(No Model.)

WITNEESES @4W/)GQ :boiler further showing said device.

UNITED STATES .i

PATENT GEEICE.

WILLIAM GREEN MIDDLEToN, or ATLANTA, GEORGIA.

RAILWAY-TRACKSANDER.

SPECIFICATION forming part of Letters lsatent No. 524,783, dated August 21, 1894. Application tiled yApril 20,1894. Serial No. 508,358. (No model.)

To all whom it may concern.;

Be it known that I, WILLIAM GREEN MID- DLETON, a citizen ofthe United States of America, and a resident of Atlanta, in the county of Fulton and State of Georgia, have madea certain new and useful Railway-Track Sander; and I do hereby declare thev following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to figures of reference marked thereon, which form a part of this specification.

This invention is illustrated in the accompanying drawings, in which- Figure 1 is an end elevation of a boiler and driving wheels thereunder, showing this device in place. Fig. 2 is a side elevation of the Fig. 3 is a vertical section through the sand ejector. Fig. 4: is a section on the line Alf-4, Fig. 3. Figs. 5 and 6 are sections respectively on the lines 5-5 and 6 6, Fig. 3, the three latter named guresbeing explanatory of Fig. 3.

In the figures like reference characters are uniformlyemployed in thedesignation of corresponding clement-s of construction in all the views. i

1 is the boiler, 2 the sand-box thereof, and

' 3 is the ordinary pipe for discharging sand.

from the box 2.

On the lower end of the pipe 3 is screwed a T 5 which in connection with a T 6 and a cap 7, forms a casing or sand receptacle 8. Into the side of this receptacle 8 is introduced a pipe 9 which is connected with the air-system at any convenient place and is cut by a valve 10 which should be inside the cab and within easy reach of the engineer or reman so that pressure of air may be turned on 4at any time it is desired to sand the track. .Obviously this pipe may be connected to a point of the boiler where dry steam may be had and steam be introduced, lout owing to the damp-4 ening of the sand by steam, airis deemed the best pressureagent for the purpose and is preferable to use, being handy on all locomotives. The pipes 3 and the other parts of this device may be duplicated on either side of the locomotive, and are so shown in the drawings but I do not confine myself to this construction. If duplicated separate` valvesin each side of the pipe 9 should be employed controlling thus each side of the sanding device, and the valve 10 will then be employed to cut off and turn on 'air to both.

A pipe 12 is introduced into the casing 8 through the branch of the T 5 and a U-connection l1 is secured to the inner end thereof so that its open end will extend to near the opening therein of the pipe 9, but is offset substantially one-half its diameter from said pipe 9, and the opening may be flared if desired. This pipe 12 is connected to a pipe 13 which extends to a position near the track and just ahead of the driving wheel it is desired it should sand. l

In order to interconnect both sides of this device at the outflow crossed pipes let may be employed being lconnected at a point of the pipes 13 whereat there will be a minimum of deflection and hence of friction in the output of sand. These pipes 14 being crossed X-wise alsov form braces against lateral pendulous movement of the pipes 13, but this not more than excess of caution, as these pipes 13 will otherwise be firmly secured to adjacent parts of the locomotive frame-work. l

It' a pebble should accidentally stop one of the pipes 13 the feed of sand to that side of the device would be kept up through the pipe 14 correspondingly connected and the sanding thus be unimpeded on both tracks.

In this device owing to the oifsetot' the airpipe and the efflux-pipe there is a Cyclonic motion of the sand in the casing 8 which keeps it in suspension and allows all pebbles which are sometimes carelessly left in the sand to fall to the bottom,wherefrom they may be removed by taking off the cap 7, and allowing the same to fall out, which maybe readily done if necessary from the running board of the locomotive without stopping.

This device may be attached to the locomotive as at present constructed without a single change of construction thereinthe parts all avoiding the running-gear.

Having thus described my invention, what` I claim as new, and desire to secure by Letters Patent of the United States, is l 1. In a track sanding device, a casing having a cylindrical chamber therein, a sand-pipe leading from the sand-box to the top of said.v

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chamber, a discharge pipe running to a position near the t'raek and led into said chamber so as tO lieaxially thereof therein and provided On the end Within said chamber with a sidewise extending nipple, and an air-induction pipe leading from an air reservoir into the side of said chamber Opposite the Opening of said nipple therein; the end of said air-pipe being Offset from the said nipple in such a manner lthat part of the air will be directed into the same and part caused to circulate in Vortical currents within said chamber, substantially as and for the purposes set forth 2. A sand box and a pipe leading therefrom, in combination with a Titting screwed On the lower end of said pipe, a second T-tting 

